Rainwater recovery device

Abstract

The utility model belongs to the technical field of municipal drainage, and particularly relates to a rainwater recycling device which comprises a drainage well, a rainwater grate and a filter assembly arranged in the drainage well, the rainwater grate is arranged at the top catchment position of the drainage well, the filter assembly comprises a filter screen structure and a filter box, and the filter screen structure comprises a filter screen and a supporting plate. A supporting plate is arranged on the filter screen, a hook claw is arranged on the supporting plate, a connecting groove is formed in the filter screen, the hook claw extends into the connecting groove, a supporting cylinder is arranged on the outer side of the filter box, a telescopic rod is connected to the supporting cylinder, the top of the telescopic rod is connected with the supporting plate, and an overflow pipe is arranged in the drainage well and arranged at the interval position of the filter screen and the filter box. The telescopic rod is shortened through self weight, the filter screen slides to the position below the overflow pipe, rainwater is discharged from the overflow pipe, the hook claws are arranged on the supporting plate, the filter screen is flexible and hung on the hook claws, the lifting handle is arranged on the filter box, and the filter screen and the filter box are both convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal drainage, in particular to a rainwater recycling device. Background Art

[0002] As a common auxiliary structure of the urban road drainage system, the rainwater inlet is generally set up on both sides of the urban road. It can collect and discharge the rainwater on the ground in time on rainy days to prevent the rainwater from overflowing the road and affecting traffic operation. The substantial increase in the impervious area of ​​the city has led to an increase in surface runoff and peak flow. A series of factors such as atmospheric deposition, vehicle wear, and exhaust emissions have led to the accumulation of a large amount of pollutants on the surface. When surface runoff occurs, a large amount of dissolved or solid pollutants are washed into the rainwater pipe network by rainwater, which ultimately causes serious damage to the ecological health of the urban water environment system.

[0003] The traditional rainwater inlet is composed of a rainwater grate, a well shaft and a connecting pipe. It has the advantages of simple structure and low price, but it is difficult to block ground garbage such as fallen leaves, mud, waste, etc. carried by rainwater. If it is not cleaned in time, it will cause garbage accumulation, pipe blockage and other problems. Utility Model Content

[0004] In view of the technical problems existing in the background technology, the purpose of the utility model is to provide a rainwater recycling device. When a large amount of rainwater and sediment flows into the recycling device and causes the filter screen to be blocked, the filter screen can be lowered below the overflow pipe, and the rainwater and sediment flow out from the overflow pipe, and backflow is less likely to occur.

[0005] In order to achieve the above purpose, the technical solution provided by the utility model is:

[0006] A rainwater recycling device comprises a drainage well, a rainwater grate and a filter assembly arranged inside the drainage well, the rainwater grate is arranged at the water collection point at the top of the drainage well, the filter assembly comprises a filter mesh structure and a filter box, the filter mesh structure comprises a filter mesh and a support plate, the support plate is provided with a hook claw, the filter mesh is provided with a connecting groove, the hook claw extends into the connecting groove, a support cylinder is provided on the outside of the filter box, a telescopic rod is connected to the support cylinder, the top of the telescopic rod is connected to the support plate, an overflow pipe is provided in the drainage well, the overflow pipe is arranged at the interval between the filter mesh and the filter box, when the filter mesh is blocked, the telescopic rod is shortened by its own weight, the filter mesh slides to the bottom of the overflow pipe, and rainwater is discharged from the overflow pipe.

[0007] Preferably, a connecting seat is provided at one end of the rain grate, a rotating shaft is provided on the drainage well, the rotating shaft extends into the connecting seat, and the rain grate and the drainage well are rotatably connected.

[0008] Preferably, one end of the filter box is provided with an opening, and the other end of the filter box is provided with a hole structure.

[0009] Preferably, a through hole is provided on the support tube, and the through hole passes through both ends of the support tube. A support block is provided at one end, and the filter box is slidably disposed in the through hole and connected to the support block.

[0010] Preferably, a connecting hole is provided on the support tube, the telescopic rod is arranged in the connecting hole, the telescopic rod includes a push rod, a spring and a sleeve, the sleeve is arranged in the connecting hole, the spring is arranged in the sleeve and one end is connected to the push rod, and the push rod is slidably arranged in the sleeve.

[0011] Preferably, a support is provided on the support tube, the support is provided at one end of the support block, and the support is connected to the bottom end of the drainage well.

[0012] Preferably, the cavity formed between the support and the drainage well is a water collection area, and a water outlet pipe is provided on the drainage well, and the water outlet pipe is arranged in the water collection area.

[0013] Preferably, the drainage well is also provided with a drainage pipe, and the drainage pipe is connected to the overflow pipe.

[0014] The utility model has the following advantages and beneficial effects:

[0015] 1. In the utility model, a hook is provided on the support plate, the filter screen is flexible, the filter screen is hung on the hook, and a handle is provided on the filter box, so that the filter screen and the filter box are easy to disassemble and assemble.

[0016] 2. In the utility model, during normal rainwater recovery, rainwater and sediment flow into the drainage well, the rainwater grate, filter screen and filter box block the sediment, the filtered rainwater falls from the bottom of the filter box and is discharged from the drainage pipe. When more rainwater and sediment flow into the drainage well and the filter screen is blocked, the filter screen drops and the rainwater and sediment are discharged from the overflow pipe.

[0017] 3. The utility model has a simple structure, is easy to operate, and is convenient for disassembly and assembly while preventing rainwater from flowing back from the drainage well. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A cross-sectional view of a rainwater recycling device provided by the utility model;

[0019] Figure 2 A schematic diagram of the upper structure of a drainage well of a rainwater recycling device provided by the utility model;

[0020] Figure 3 A schematic diagram of the structure of a rainwater grate of a rainwater recycling device provided by the utility model;

[0021] Figure 4A schematic diagram of the support plate structure of a rainwater recycling device provided by the utility model;

[0022] Figure 5 A schematic diagram of the filter structure of a rainwater recycling device provided by the utility model;

[0023] Figure 6 A top view of a support tube of a rainwater recycling device provided by the utility model;

[0024] Figure 7 A schematic diagram of the telescopic rod structure of a rainwater recycling device provided by the utility model;

[0025] Figure 8 A schematic diagram of the filter box structure of a rainwater recycling device provided by the utility model;

[0026] Icons: 1-drainage well, 101-rotating shaft, 2-rainwater grate, 21-connecting seat, 3-support plate, 31-hook, 4-filter net, 41-connecting groove, 5-support cylinder, 51-through hole, 52-connecting hole, 53-support block, 54-support, 6-sleeve, 61-top rod, 62-spring, 7-filter box, 71-opening, 72-handle, 8-water collection area, 81-outlet pipe, 82-overflow pipe, 83-drainage pipe. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Example

[0030] A rainwater recycling device comprises a drainage well 1, a rainwater grate 2 and a filter assembly arranged inside the drainage well 1, the rainwater grate 2 is arranged at the water collection point at the top of the drainage well 1, the filter assembly comprises a filter mesh structure and a filter box 7, the filter mesh structure comprises a filter mesh 4 and a support plate 3, the support plate 3 is provided with a hook 31, the filter mesh 4 is hooked on the support plate 3, the filter box 7 is arranged below the filter mesh 4, a support cylinder 5 is arranged on the outside of the filter box 7, a support cylinder 5 is arranged at the bottom of the support cylinder 5, the filter assembly is supported in the drainage well 1 by the support 54, rainwater and sediment flow into the rainwater grate 2, and pass through the filter mesh 4 and the filter box 7, and finally pure rainwater is obtained.

[0031] like Figure 1 , 2 As shown in Figures 3, 4 and 5, a connecting seat 21 is provided at one end of the rainwater grate 2, a rotating shaft 101 is provided on the drainage well 1, and the rotating shaft 101 extends into the connecting seat 21, the rainwater grate 2 and the drainage well 1 are rotatably connected, a support plate 3 is provided below the rainwater grate 2, the middle part of the support plate 3 is penetrated, and hooks 31 are arranged around the support plate 3 and extend to the middle part of the support plate 3. The filter screen 4 is made of flexible material, and a plurality of hole structures are provided on the filter screen 4 for filtering rainwater. A connecting groove 41 is provided on the filter screen 4, and the connecting groove 41 is arranged around the filter screen 4 and at the corresponding position of the hook 31. The hook 31 extends into the connecting groove 41, and the filter screen 4 is hung on the support plate 3 for easy disassembly and assembly.

[0032] like Figure 1 , 8 As shown, an opening 71 is provided at one end of the filter box 7, and a hole structure is provided at the other end of the filter box 7 for further filtering. Quartz sand, anthracite and zeolite are filled inside the filter box 7 for further filtering rainwater and sediment. The filtered rainwater flows out from the bottom of the filter box 7. A handle 72 is provided at one end of the opening 71. The filter box 7 can be disassembled and assembled in the drainage well 1 by holding the handle 72.

[0033] like Figure 1 , 6 As shown in , 7, a through hole 51 is provided on the support tube 5, and the through hole 51 passes through both ends of the support tube 5. A support block 53 is provided at the lower end of the support tube 5. The filter box 7 is slidably arranged in the through hole 51 and connected to the support block 53. The support tube 5 is also provided with a support 54, and the support 54 is arranged at one end of the support block 53. The support 54 is supported at the bottom end of the drainage well 1. A connecting hole 52 is provided at the upper end of the support tube 5, and a telescopic rod is arranged in the connecting hole 52. The telescopic rod includes a push rod 61, a spring 62 and a sleeve 6. The sleeve 6 is arranged in the connecting hole 52, and the spring 62 is arranged in the sleeve 6, and one end is connected to the push rod 61. The push rod 61 is slidably arranged in the sleeve 6, and the top of the push rod 61 is connected to the support plate 3. The support plate 3 can approach or move away from the support tube 5 through the spring 62.

[0034] like Figure 1 As shown, an overflow pipe 82 is provided in the drainage well 1. When the spring 62 is not compressed, the overflow pipe 82 is provided between the filter screen 4 and the filter box 7. When the spring 62 is compressed, the filter screen 4 drops toward the filter box 7, so that the filter screen 4 drops below the overflow pipe 82. The drainage well 1 is also provided with a drainage pipe 83, which is connected to the overflow pipe 82 to discharge the overflowed rainwater. The cavity formed between the support cylinder 5 and the drainage well 1 is the water collection area 8. The drainage well 1 is provided with a water outlet pipe 81, which is connected to the water collection area 8. The filtered rainwater flows into the water collection area 8 and is discharged from the water outlet pipe 81.

[0035] Working principle: Open the rain grate 2, put the support tube 5 into the drainage well 1, support the support 54 at the bottom of the drainage well 1, insert the telescopic rod into the connecting hole 52, hold the handle 72 to place the filter box 7 in the support tube 5, the bottom of the filter box 7 is supported on the support block 53, and the filter screen 4 is hung on the hook 31, close the rain grate 2, when normal flow of rainwater and sediment flows into the drainage well 1, the rainwater and sediment are filtered by the rain grate 2, the filter screen 4 and the filter box 7 respectively, and the pure rainwater flows from the bottom of the filter box 7 into the water collection area 8 and from The water flows out of the outlet pipe 81. After a period of time, the rain grate 2 is opened, the filter screen 4 is removed from the hook claw 31, and the filter screen 4 is cleaned. The filter box 7 is taken out by holding the handle 72, and the filter box 7 is cleaned to increase its service life. When the amount of rainwater is large and there are many sediments, the sediments will block the filter screen 4. At this time, under the action of gravity, the support plate 3 compresses the spring 62 and drives the filter screen 4 to move downward, so that the filter screen 4 drops to the bottom of the overflow pipe 82, and a large amount of rainwater and sediments flow out from the overflow pipe 82. The accumulated water is quickly discharged without filtering to prevent water accumulation on the ground.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rainwater recycling device, comprising a drainage well, a rainwater grate and a filter assembly arranged inside the drainage well, characterized in that: The rainwater grate is arranged at the water collection point at the top of the drainage well. The filter assembly includes a filter screen structure and a filter box arranged in sequence along the depth direction of the drainage well. The filter screen structure includes a filter screen. An overflow pipe is arranged in the drainage well. The overflow pipe is arranged at the interval position between the filter screen and the filter box. The bottom end of the drainage well is provided with a water outlet pipe connected to the filter box.

2. A rainwater recycling device according to claim 1, characterized in that: The filter screen structure also includes a support plate, a hook is provided on the support plate, a connecting groove is provided on the filter screen, the hook extends into the connecting groove, a support cylinder is provided on the outer side of the filter box, a telescopic rod is slidably provided on the inner wall of the support cylinder, and the top of the telescopic rod is connected to the support plate.

3. A rainwater recycling device according to claim 2, characterized in that: A connecting seat is arranged at one end of the rainwater grate, a rotating shaft is arranged on the drainage well, and the rotating shaft extends into the connecting seat, so that the rainwater grate and the drainage well are rotatably connected.

4. A rainwater recycling device according to claim 3, characterized in that: One end of the filter box is provided with an opening, the other end of the filter box is provided with a hole structure, and one end of the opening is provided with a handle.

5. A rainwater recycling device according to claim 4, characterized in that: The support tube is provided with a through hole, which passes through both ends of the support tube. A support block is provided at one end. The filter box is slidably arranged in the through hole and connected to the support block.

6. A rainwater recycling device according to claim 5, characterized in that: The support tube is provided with a connecting hole, the telescopic rod is arranged in the connecting hole, the telescopic rod comprises a push rod, a spring and a sleeve, the sleeve is arranged in the connecting hole, the spring is arranged in the sleeve and one end is connected to the push rod, and the push rod is slidably arranged in the sleeve.

7. A rainwater recycling device according to claim 6, characterized in that: A support is arranged on the support cylinder, the support is arranged at one end of the support block, and the support is supported at the bottom end of the drainage well.

8. A rainwater recycling device according to claim 7, characterized in that: The cavity formed between the support tube and the drainage well is a water collection area, the water outlet pipe is arranged in the water collection area, and the drainage well is also provided with a drainage pipe, and the drainage pipe is connected to the overflow pipe.

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